This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Increase your maximum Health by 750.
Heal for 200 after hitting an enemy with Shoulder Bash.
Generate 4 Ammo after activating Siege Shield.
Gain 20% Lifesteal.
Increase your maximum Ammo by 5.